This afternoon I have installed a used fan clutch on my car (my old one was not coupling a whole lot). After about 3 minutes of idling I heard a sharp noise and piece of metal was lying under the car- it was that little strip of metal you can see accross the front of the clutch body. When I got that part from the junk jard I noticed it was rattling a little bit which I could not remember about my old one.
Obviously, I need to understand what does it do and can I leave the clutch run without it. I am really mad at myself for not placing this post BEFORE putting the whole thing back together...